exhaust shop is suggestion delta flow 50 serries or 18in Magna flow 3inch exhaust help lol

[james133]

My build is finaly coming to an end need to chose between flowmaster or magnaflow

exhaust shop is suggestion delta flow 50 serries or 18in Magna flow 3inch exhaust

its a 1969 charger with 440 .....engine has been rebuilt a now a 512 stroker tti headers

shops says flow master 40 series would be to loud and people get tired of it


I mean i want it loud but i also want to be able to hear my radio inside the car car


between these to suggestions what are people experience

 

[mr. b]

I would go with the magnaflow my buddy has them on his GTX with a 528 hemi and they sound great not to loud but not quite

 

[TorRed]

I've purchased Dynomax Ultraflo's with the correct dimensions to fit with the TTI header back exhaust I'm planning. Even if I don't go TTI, I'm still using the mufflers since I like the medium volume and straight through design. Heard some not so great things about Flowmaster costing HP, I don't have the details but apparently there have been tests to prove it.

 

[Nirvana]

I bet they recommend those to a lot of people. Lots of profit in flowmaster and magnaflow. I feel like those two options are almost extreme opposites, where is the middle ground?

I’m a big fan of the Ultraflo by Dynomax, I have it on modern vehicles and old Mopars. But I’m also of the belief that exhaust is a very personal choice. You might have to try a few mufflers before you find what you like. I know I did.

 

[Krooser]

3" glass or steel packs. Cheaper and better sounding IMHO.


Look at Porter Mufflers...custom made to your specs

 

[Don Frelier]

I don't think you would be happy with 3"x18" magnaflows.
At 40 mph I don't think you could hear anything but a wicked drone.

 

[33 IMP]

I have both, sorta.
I have 22"case 3" straight thru magnaflows on my Opel. Good sound, pretty quiet, considering the 454 in front of em.
I have 53550's big block flowmasters on my 62. Quiet for a 3.5" system, but I have full 3.5 tailpipes too.
I LOVE the sound of my flowmasters. They have no drone, but frankly, they are HUGE.... and way too much money now. ($250 ea! Wtf?)

If I was doing the 62 system over, right now? Dynomax ultraflows, in the same pipe size as the collector.... unless it's four inches or something (I do have a pair of bbm headers with a four inch collector, WAY too big for a 440)

IF you want flowmasters.... Get THREE chamber version!

Other alternatives: Hooker aero flow, or something from Jones exhaust, from summit. Jones makes an Amazing variety, including stainless at very good prices.
I ran nine second laps with a n/a small block car thru hooker 3.5" aero's.

 

[GTX JOHN]

I use the cheap Summit Knockoffs of Flowmasters.
A fraction of the cost and sound quality is identical!
Never tried any others but the car runs 10's thru them (Mild
440) so they seem to work perfect.

 

[Cranky]

I've run straights since the mid 70's and well.....it's loud out the back and have shut down more than a few aholes with the boom box crap and it's nothing like waking up the jerks sleeping as the first car at a traffic light that has a cell phone up their butt lol. A straight pipe system will quiet down some with crimps in the pipe if it's too loud which doesn't affect flow. Boundary air flow isn't affected by the crimps and never got a ticket in the 50 years of running straights......

 

[Some Car Guy]

After having resonators for the first time in an old mopar, I will never ever run one again without them. I’d look up that flow chart that is floating around the web, including in my exhaust post. I went with the super turbos as those have a great flow rate. I’ve had them before and had drone, like always. No matter what, I’ve had to deal with drone with every muffler I’ve had behind a big block, which is quite a few different ones.

I would look at ultraflows and add a resonator. The Vibrant can version fit and worked well on my GTX. I have zero drone for first time in thirty years of fooling with these cars.

 

[Black_Sheep]

TTI 3” exhaust with Delta 50’s. The first is idling (cold) from outside the car, the other is normal driving with a GoPro inside of the car…

 

[threewood]

Another vote for Dynomax Ultra Flows. Straight through design, welded seams, and they are quiet at cruise speed in 3".

 

[Voetom]

My build is finaly coming to an end need to chose between flowmaster or magnaflow

exhaust shop is suggestion delta flow 50 serries or 18in Magna flow 3inch exhaust

its a 1969 charger with 440 .....engine has been rebuilt a now a 512 stroker tti headers

shops says flow master 40 series would be to loud and people get tired of it


I mean i want it loud but i also want to be able to hear my radio inside the car car


between these to suggestions what are people experience

James, You need to fit the 5" by 11" by 21" Magnaflow on it. They sound good, flow great, do a real nice job of toning it down and will not resonate too badly if they mount them correctly. If there is still a 5 by 11 Superturbo, it is even better if it is the long body one.

 

[33 IMP]

Tom Hand's advice (Voetom) is the BEST muffler advice you're ever gonna get!

 

[Voetom]

Tom Hand's advice (Voetom) is the BEST muffler advice you're ever gonna get!

Thanks 331. I just heard a 520 cu in Jon Kaase Ford with these MagnaFlow-style mufflers and it was impressive.

 

[pa383mopar]

James, You need to fit the 5" by 11" by 21" Magnaflow on it. They sound good, flow great, do a real nice job of toning it down and will not resonate too badly if they mount them correctly. If there is still a 5 by 11 Superturbo, it is even better if it is the long body one.

@Voetom I recently had a full new exhaust system installed on my Coronet. Changed to HIPO manifolds with full 2-1/2 to 2-1/4 pipes with turndowns and Flowmaster Delta 50 mufflers. We used factory-style brackets at rear of mufflers and tailpipes. The previous mufflers were Flowmaster Delta 40’s which are supposed to be louder than the new Delta 50’s. I now have an annoying resonance that didn’t exist on the previous system. Regarding your comment above “if they mount them correctly”, what are the critical things that must be done to avoid additional resonance? Just wondering if we did something wrong with the new install. Thanks in advance!

 

[Voetom]

@Voetom I recently had a full new exhaust system installed on my Coronet. Changed to HIPO manifolds with full 2-1/2 to 2-1/4 pipes with turndowns and Flowmaster Delta 50 mufflers. We used factory-style brackets at rear of mufflers and tailpipes. The previous mufflers were Flowmaster Delta 40’s which are supposed to be louder than the new Delta 50’s. I now have an annoying resonance that didn’t exist on the previous system. Regarding your comment above “if they mount them correctly”, what are the critical things that must be done to avoid additional resonance? Just wondering if we did something wrong with the new install. Thanks in advance!

Turndowns and flowmasters will typically resonate as will any muffler with turndowns. Add tailpipes and it'll help a ton!

 

[WileE]

Mufflers and exhaust are a very subjective subject. It was much easier 50 years ago when everyone wanted me to install Thrush mufflers or Cherry bombs !

 

[pa383mopar]

Turndowns and flowmasters will typically resonate as will any muffler with turndowns. Add tailpipes and it'll help a ton!

Sorry, I wasn’t clear. I have full tailpipes to the rear as factory stock. The tailpipes have turndowns.

 

[Black_Sheep]

Turndowns and flowmasters will typically resonate as will any muffler with turndowns. Add tailpipes and it'll help a ton!

That’s almost verbatim what I was told when I asked the Flowmaster rep about the drone I experienced when I put Delta 50’s and dumps on my truck…